/**
 *    Copyright 2010-2016 the original author or authors.
 *
 *    Licensed under the Apache License, Version 2.0 (the "License");
 *    you may not use this file except in compliance with the License.
 *    You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *    Unless required by applicable law or agreed to in writing, software
 *    distributed under the License is distributed on an "AS IS" BASIS,
 *    WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *    See the License for the specific language governing permissions and
 *    limitations under the License.
 */
package org.mybatis.spring.transaction;

import java.sql.Connection;
import java.util.Properties;

import javax.sql.DataSource;

import org.apache.ibatis.session.TransactionIsolationLevel;
import org.apache.ibatis.transaction.Transaction;
import org.apache.ibatis.transaction.TransactionFactory;

/**用于创建SpringManagedTransaction对象
 * Creates a {@code SpringManagedTransaction}.
 *
 * @author Hunter Presnall
 */
public class SpringManagedTransactionFactory implements TransactionFactory {

	/**
	 * {@inheritDoc}
	 */
	@Override
	public Transaction newTransaction(DataSource dataSource, TransactionIsolationLevel level, boolean autoCommit) {
		return new SpringManagedTransaction(dataSource);
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public Transaction newTransaction(Connection conn) {
		throw new UnsupportedOperationException("New Spring transactions require a DataSource");
	}

	/**
	 * {@inheritDoc}
	 */
	@Override
	public void setProperties(Properties props) {
		// not needed in this version
	}

}
